From: Petr Vorel <pvorel@suse.cz>
To: Martin Doucha <mdoucha@suse.cz>
Cc: ltp@lists.linux.it
Subject: Re: [LTP] [PATCH] tst_detach_device: Clear leftover partitions
Date: Fri, 12 Dec 2025 15:39:04 +0100 [thread overview]
Message-ID: <20251212143904.GE125889@pevik> (raw)
In-Reply-To: <20251212104025.15924-1-mdoucha@suse.cz>
Hi Martin,
> Some kernels have a race condition during loop device release
> which results in partitions being left over on unattached device.
> The partitions then cause mkfs.vfat failures in later tests.
> Check for loop device partitions after detaching it and clear them
> if necessary.
Nice work, thanks!
Looping ioctl_loop01.c and ioctl_ficlone02.c I reproduce the problem after 171
iterations:
ioctl_loop01.c:75: TPASS: access /sys/block/loop0/loop0p1 succeeds
tst_device.c:321: TWARN: Detached device /dev/loop0 has leftover partitions
Kind regards,
Petr
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Mailing list info: https://lists.linux.it/listinfo/ltp
next prev parent reply other threads:[~2025-12-12 14:39 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-12 10:40 [LTP] [PATCH] tst_detach_device: Clear leftover partitions Martin Doucha
2025-12-12 14:39 ` Petr Vorel [this message]
2025-12-16 12:13 ` Andrea Cervesato via ltp
2025-12-16 12:16 ` Martin Doucha
2025-12-16 12:19 ` Andrea Cervesato via ltp
2025-12-18 13:11 ` Andrea Cervesato via ltp
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